device syzkaller0 entered promiscuous mode
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4175 at include/linux/skbuff.h:2908 skb_transport_header include/linux/skbuff.h:2908 [inline]
WARNING: CPU: 1 PID: 4175 at include/linux/skbuff.h:2908 tcf_get_base_ptr include/net/pkt_cls.h:504 [inline]
WARNING: CPU: 1 PID: 4175 at include/linux/skbuff.h:2908 em_nbyte_match+0x121/0x140 net/sched/em_nbyte.c:43
Modules linked in:
CPU: 1 PID: 4175 Comm: syz.1.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:skb_transport_header include/linux/skbuff.h:2908 [inline]
RIP: 0010:tcf_get_base_ptr include/net/pkt_cls.h:504 [inline]
RIP: 0010:em_nbyte_match+0x121/0x140 net/sched/em_nbyte.c:43
Code: 89 c3 31 ff 89 c6 e8 4e 77 60 fe 31 c0 85 db 0f 94 c0 eb 07 e8 90 73 60 fe 31 c0 5b 41 5c 41 5e 41 5f 5d c3 e8 80 73 60 fe 90 <0f> 0b 90 41 0f b7 af b6 00 00 00 44 0f b7 73 02 e9 36 ff ff ff cc
RSP: 0018:ffffc90000ccb880 EFLAGS: 00010293
RAX: ffffffff82d165c0 RBX: ffff888106f5b248 RCX: ffff88810ab51b00
RDX: 0000000000000000 RSI: 000000000000ffff RDI: 000000000000ffff
RBP: 000000000000ffff R08: ffff88810ab51b00 R09: 0000000000000003
R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000000002000 R15: ffff88811025f200
FS:  00007f94f7c266c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000002280 CR3: 0000000103352000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 tcf_em_match net/sched/ematch.c:492 [inline]
 __tcf_em_tree_match+0xaf/0x3a0 net/sched/ematch.c:518
 tcf_em_tree_match include/net/pkt_cls.h:477 [inline]
 basic_classify+0x61/0x110 net/sched/cls_basic.c:48
 __tcf_classify net/sched/cls_api.c:1566 [inline]
 tcf_classify+0x16b/0x3d0 net/sched/cls_api.c:1632
 multiq_classify net/sched/sch_multiq.c:39 [inline]
 multiq_enqueue+0x45/0x190 net/sched/sch_multiq.c:66
 dev_qdisc_enqueue+0x2d/0x1c0 net/core/dev.c:3777
 __dev_xmit_skb net/core/dev.c:3866 [inline]
 __dev_queue_xmit+0x59c/0x1640 net/core/dev.c:4213
 packet_snd net/packet/af_packet.c:3071 [inline]
 packet_sendmsg+0x1a9e/0x2180 net/packet/af_packet.c:3102
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 ____sys_sendmsg+0x3a5/0x3b0 net/socket.c:2460
 ___sys_sendmsg+0x10a/0x150 net/socket.c:2514
 __sys_sendmsg net/socket.c:2543 [inline]
 __do_sys_sendmsg net/socket.c:2552 [inline]
 __se_sys_sendmsg net/socket.c:2550 [inline]
 __x64_sys_sendmsg+0xcf/0x140 net/socket.c:2550
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x57/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f94f7db6749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f94f7c26038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f94f800cfa0 RCX: 00007f94f7db6749
RDX: 0000000000000004 RSI: 00002000000000c0 RDI: 0000000000000007
RBP: 00007f94f7e3af91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f94f800d038 R14: 00007f94f800cfa0 R15: 00007ffd40ce8168
 </TASK>